Radeon E8870 vs GeForce GT 745A
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 820 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 6.88 | no data |
| Architecture | Kepler (2012−2018) | GCN 2.0 (2013−2017) |
| GPU code name | GK107 | Saturn |
| Market segment | Laptop | Laptop |
| Release date | 26 August 2013 (12 years ago) | 29 September 2015 (10 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 384 | 768 |
| Core clock speed | 837 MHz | 1000 MHz |
| Boost clock speed | 915 MHz | no data |
| Number of transistors | 1,270 million | 2,080 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 33 Watt | 75 Watt |
| Texture fill rate | 29.28 | 48.00 |
| Floating-point processing power | 0.7027 TFLOPS | 1.536 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 32 | 48 |
| L1 Cache | 32 KB | 192 KB |
| L2 Cache | 256 KB | 256 KB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 3.0 x16 | MXM-B (3.0) |
| Supplementary power connectors | no data | None |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | DDR3 | GDDR5 |
| Maximum RAM amount | 2 GB | 4 GB |
| Memory bus width | 128 Bit | 128 Bit |
| Memory clock speed | 900 MHz | 1500 MHz |
| Memory bandwidth | 28.8 GB/s | 96 GB/s |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 (12_0) |
| Shader Model | 5.1 | 6.3 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.1.126 | 1.2.131 |
| CUDA | 3.0 | - |
Pros & cons summary
| Recency | 26 August 2013 | 29 September 2015 |
| Maximum RAM amount | 2 GB | 4 GB |
| Power consumption (TDP) | 33 Watt | 75 Watt |
GT 745A has 127% lower power consumption.
Radeon E8870, on the other hand, has an age advantage of 2 years, and a 100% higher maximum VRAM amount.
We couldn't decide between GeForce GT 745A and Radeon E8870. We've got no test results to judge.
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